diff --git a/CHANGELOG.md b/CHANGELOG.md
index e05c49a1..95f2b95b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
     -    force children to get displayed as inline content
 -   `<StringPreviewContentBlobToggler />`
     - `useOnly` property: specify if only parts of the content should be used for the shortened preview, this property replaces `firstNonEmptyLineOnly`
+-   `<ActivityControlWidget />`
+    -    extend `activityActions` parameter by `notification` property in order to display a notification in an overlay pointing at the activity button.
 
 ### Fixed
 
@@ -45,6 +47,16 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 This is a major release, and it might be not compatible with your current usage of our library. Please read about the necessary changes in the section about how to migrate.
 
+### Added
+
+-    `<ActivityControlWidget />`
+     -    Add parameter `active` to activity control action to set the `active` state of its button.
+
+### Changed
+
+-    `<MultiSelect />`:
+     -    Change default filter predicate to match multi-word queries.
+
 ### Migration from v24 to v25
 
 -   remove deprecated components, properties and imports from your project, if the info cannot be found here then it was already mentioned in **Deprecated** sections of the past changelogs
diff --git a/src/cmem/ActivityControl/ActivityControlWidget.tsx b/src/cmem/ActivityControl/ActivityControlWidget.tsx
index efda5060..b529f96a 100644
--- a/src/cmem/ActivityControl/ActivityControlWidget.tsx
+++ b/src/cmem/ActivityControl/ActivityControlWidget.tsx
@@ -1,17 +1,20 @@
 import React from "react";
 
-import { ValidIconName } from "../../components/Icon/canonicalIconNames";
-import { IconProps } from "../../components/Icon/Icon";
-import { TestIconProps } from "../../components/Icon/TestIcon";
-import { TestableComponent } from "../../components/interfaces";
-import { ProgressBarProps } from "../../components/ProgressBar/ProgressBar";
-import { SpinnerProps } from "../../components/Spinner/Spinner";
-import { CLASSPREFIX as eccgui } from "../../configuration/constants";
+import {ValidIconName} from "../../components/Icon/canonicalIconNames";
+import {IconProps} from "../../components/Icon/Icon";
+import {TestIconProps} from "../../components/Icon/TestIcon";
+import {TestableComponent} from "../../components/interfaces";
+import {ProgressBarProps} from "../../components/ProgressBar/ProgressBar";
+import {SpinnerProps} from "../../components/Spinner/Spinner";
+import {CLASSPREFIX as eccgui} from "../../configuration/constants";
 import {
     Card,
     ContextMenu,
+    ContextOverlay,
     IconButton,
     MenuItem,
+    Notification,
+    NotificationProps,
     OverflowText,
     OverviewItem,
     OverviewItemActions,
@@ -97,7 +100,7 @@ interface IActivityContextMenu extends TestableComponent {
 export interface ActivityControlWidgetAction extends TestableComponent {
     // The action that should be triggered
     action: () => void;
-    // The tooltip that should be shown over the action icon
+    // The tooltip that should be shown over the action icon on hover
     tooltip?: string;
     // The icon of the action button
     icon: ValidIconName | React.ReactElement<TestIconProps>;
@@ -105,6 +108,16 @@ export interface ActivityControlWidgetAction extends TestableComponent {
     disabled?: boolean;
     // Warning state
     hasStateWarning?: boolean;
+    // Active state
+    active?: boolean
+    /** A notification that is shown in an overlay pointing at the activity action button. */
+    notification?: {
+        message: string
+        onClose: () => void
+        intent?: NotificationProps["intent"]
+        // Timeout in ms before notification is closed. Default: none
+        timeout?: number
+    }
 }
 
 interface IActivityMenuAction extends ActivityControlWidgetAction {
@@ -210,26 +223,39 @@ export function ActivityControlWidget(props: ActivityControlWidgetProps) {
             >
                 {activityActions &&
                     activityActions.map((action, idx) => {
-                        return (
-                            <IconButton
-                                key={
-                                    typeof action.icon === "string"
-                                        ? action.icon
-                                        : action["data-test-id"] ?? action["data-testid"] ?? idx
-                                }
-                                data-test-id={action["data-test-id"]}
-                                data-testid={action["data-testid"]}
-                                name={action.icon}
-                                text={action.tooltip}
-                                onClick={action.action}
-                                disabled={action.disabled}
-                                intent={action.hasStateWarning ? "warning" : undefined}
-                                tooltipProps={{
-                                    hoverOpenDelay: 200,
-                                    placement: "bottom",
-                                }}
-                            />
-                        );
+                        const ActionButton = () => <IconButton
+                            key={
+                                typeof action.icon === "string"
+                                    ? action.icon
+                                    : action["data-test-id"] ?? action["data-testid"] ?? idx
+                            }
+                            data-test-id={action["data-test-id"]}
+                            data-testid={action["data-testid"]}
+                            name={action.icon}
+                            text={action.tooltip}
+                            onClick={action.action}
+                            disabled={action.disabled}
+                            intent={action.hasStateWarning ? "warning" : undefined}
+                            tooltipProps={{
+                                hoverOpenDelay: 200,
+                                placement: "bottom"
+                            }}
+                            active={action.active}
+                        />
+                        return action.notification ?
+                            <ContextOverlay
+                                content={<Notification
+                                    message={action.notification.message}
+                                    intent={action.notification.intent ?? "neutral"}
+                                    onDismiss={action.notification.onClose}
+                                    timeout={action.notification.timeout}
+                                />}
+                                defaultIsOpen={true}
+                                onClose={action.notification.onClose}
+                            >
+                                <ActionButton/>
+                            </ContextOverlay> :
+                            <ActionButton/>
                     })}
                 {additionalActions}
                 {activityContextMenu && activityContextMenu.menuItems.length > 0 && (
diff --git a/src/components/MultiSelect/MultiSelect.tsx b/src/components/MultiSelect/MultiSelect.tsx
index 3685ed86..eb0f07c1 100644
--- a/src/components/MultiSelect/MultiSelect.tsx
+++ b/src/components/MultiSelect/MultiSelect.tsx
@@ -10,7 +10,15 @@ import { removeExtraSpaces } from "../../common/utils/stringUtils";
 import { CLASSPREFIX as eccgui } from "../../configuration/constants";
 import { TestableComponent } from "../interfaces";
 
-import { ContextOverlayProps, Highlighter, IconButton, MenuItem, OverflowText, Spinner } from "./../../index";
+import {
+    ContextOverlayProps,
+    Highlighter,
+    highlighterUtils,
+    IconButton,
+    MenuItem,
+    OverflowText,
+    Spinner
+} from "./../../index";
 
 export interface MultiSuggestFieldSelectionProps<T> {
     newlySelected?: T;
@@ -53,7 +61,7 @@ interface MultiSuggestFieldCommonProps<T>
     /**
      * prop to listen for query changes, when text is entered in the multi-select input
      */
-    runOnQueryChange?: (query: string) => Promise<T[] | undefined>;
+    runOnQueryChange?: (query: string) => Promise<T[] | undefined> | (T[] | undefined);
     /**
      * Whether the component should take up the full width of its container.
      * This overrides `tagInputProps.fill`.
@@ -265,7 +273,8 @@ export function MultiSuggestField<T>({
     };
 
     const defaultFilterPredicate = (item: T, query: string) => {
-        return itemLabel(item).toLowerCase().includes(query);
+        const searchWords = highlighterUtils.extractSearchWords(query, true)
+        return highlighterUtils.matchesAllWords(itemLabel(item).toLowerCase(), searchWords)
     };
 
     /**